CN217796445U - Fine crusher rotor assembly capable of uniformly crushing materials - Google Patents
Fine crusher rotor assembly capable of uniformly crushing materials Download PDFInfo
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- CN217796445U CN217796445U CN202121624798.9U CN202121624798U CN217796445U CN 217796445 U CN217796445 U CN 217796445U CN 202121624798 U CN202121624798 U CN 202121624798U CN 217796445 U CN217796445 U CN 217796445U
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Abstract
The invention discloses a fine crusher rotor assembly capable of uniformly crushing materials, and solves the technical problems of effectively breaking the material arching phenomenon and improving the uniformity of material crushing. With traditional equal interval on every hammer axle be arranged one row of tup subassembly, on hammer disks excircle side, be formed with the arrangement of the tup subassembly that the matrix was arranged, change into: the hammer head components arranged on the adjacent hammer shafts on the outer circle side surface of the hammer disc are arranged in a staggered mode along the axial direction, so that the hammer head components form a spiral line arrangement mode on the outer circle side surface of the hammer disc, the central axes of the spiral lines are overlapped with the central axis of the rotor main shaft, a spiral clearance groove is formed between the two adjacent spiral lines, the spiral gap groove rotates at a high speed along with the rotor, so that the coal which continuously falls from the inlet of the fine crusher is effectively absorbed, the coal passively forms spiral falling track logistics, the phenomenon of material arching is effectively eliminated, and the uniformity of material crushing is greatly improved.
Description
Technical Field
The invention relates to a fine crusher for crushing materials, in particular to a structure of a rotor assembly of a fine crusher for crushing fire coal supplied to a circulating fluidized bed.
Background
The circulating fluidized bed boiler has small requirement on the particle size of the fire coal and high requirement on the uniformity, and the particle size and the uniformity of the fire coal are one of important factors influencing the stable combustion of the boiler; the fuel coal supplied to the circulating fluidized bed boiler generally needs to be crushed firstly, and can be supplied to the boiler for combustion after reaching the required granularity and uniformity; the crushing of the fire coal is completed by a fine crusher, a rotor is arranged in a cavity of the fine crusher, a hammer head assembly is arranged on the rotor, the fire coal continuously enters the upper part of the cavity of the fine crusher from a feeding port above the fine crusher through a belt conveyor, the rotor in the cavity drives the hammer head on the rotor to rotate at a high speed, the fire coal falling into the upper part of the cavity of the fine crusher is impacted and crushed by the hammer head rotating at a high speed, the hit coal obtains kinetic energy from the hammer head, the coal is collided with each other and crushed again, the crushed coal falls down, the coal continues to fall down along a gap between the rotor and a crushing plate body and is extruded and collided again by the rotating hammer head to be crushed, and finally the coal is discharged from a discharge port at the bottom of the fine crusher.
The working environment of the fine crusher is severe, and particularly, the rotor in the cavity needs to be replaced regularly and frequently due to high-strength collision and abrasion; the hammer head and the hammer handle in the existing fine crusher are of an integrated structure, and are integrally replaced at the same time, but because the hammer head is more serious in abrasion than the hammer handle, the hammer handle can be continuously used when the hammer head is damaged, and the material waste is caused by the integral replacement; the rotor of the existing fine crusher is mainly composed of a rotor main shaft, hammer disks and hammer head components, the hammer disks are arranged in a hot mode at equal intervals along the axis direction of the main shaft, hammer shafts are connected between the outer circles of the hammer disks in a penetrating mode at equal intervals in radian, a row of hammer head components and all the hammer head components are arranged on each hammer shaft at intervals, and a hammer head component matrix is formed on the outer circle surface of the rotor of the fine crusher; because each hammer shaft is an integral shaft, when a certain hammer head component on the shaft is seriously abraded and needs to be replaced, only the whole hammer shaft can be dismantled, and the damaged hammer head component on the hammer shaft can be replaced, so that the problems of long time consumption and high labor intensity in dismounting and mounting are solved; in addition, the hammer shaft which is connected between the hammer disks in a penetrating mode is characterized in that the two ends of the hammer shaft are respectively provided with the blocking covers, the two blocking covers are fixedly positioned, the hammer shaft and the hammer disks are fixed, the blocking covers are fixedly connected with the hammer disks at the end portions through four bolts in a screwed mode, when the hammer shaft needs to be disassembled, the screwed bolts on the blocking covers at the two sides need to be disassembled, the defects that the disassembling and the assembling are time-consuming and labor-consuming are overcome, the replacing and overhauling time is prolonged, and the normal production on site is influenced.
In the existing fine crusher rotor, a plurality of hammer disks are arranged at equal intervals in a hot manner along the direction of a central shaft of a rotor main shaft, hammer shafts are arranged on the outer circle of each hammer disk at equal intervals in a radian manner, the hammer disks and the hammer shafts form a mouse cage-shaped structure, a row of hammers are arranged on each hammer shaft at intervals, and a matrix-type hammer head assembly array is formed on the outer circular surface of the fine crusher rotor; the rotor rotates at a high speed to drive the array hammer heads to perform hammering collision with the materials continuously entering the cavity of the fine crusher, so that the materials are crushed; as the hammerheads arranged along the radial direction are arranged in a horizontal line on the outer circular surface of the rotor of the fine crusher and fixed at intervals, the hammerhead assembly meets the material in a line-shaped dynamic rotation mode in the process of high-speed rotation of the rotor and uniform falling of the material, the accumulation phenomenon of the material is easily formed at the meeting position of the material and the hammerhead, commonly known as material arching in the same industry, influences the uniformity of coal crushing, effectively breaks the material arching phenomenon, improves the uniformity of material crushing, and is a technical problem which is always sought to be solved by technical personnel in the industry.
Disclosure of Invention
The invention provides a fine crusher rotor assembly capable of uniformly crushing materials, and solves the technical problems of effectively eliminating the phenomenon of material arching and improving the uniformity of material crushing.
The invention solves the technical problems through the following technical scheme:
the general concept of the invention is: with traditional equal interval on every hammer axle be arranged one row of tup subassembly, on hammer disks excircle side, be formed with the arrangement of the tup subassembly that the matrix was arranged, change into: the hammer subassembly that sets up on adjacent hammer spindle on hammer disks excircle side, stagger along the axial and arrange, make the hammer subassembly, on hammer disks excircle side, form the helix form of arranging, the central axis of these helices coincides with the central axis of rotor spindle, form heliciform clearance recess between the two adjacent helices, this heliciform clearance recess is rotatory along with the rotor is high-speed, the continuous coal-fired of whereabouts of fine crusher entry has effectively been absorbed, make the coal-fired passive formation spiral whereabouts orbit commodity circulation, effectively eliminate "material hunch-up" phenomenon, the broken degree of consistency of material has been improved greatly.
A fine crusher rotor assembly capable of uniformly crushing materials comprises a rotor main shaft, wherein a left end bearing of the rotor main shaft is arranged at the left end of the rotor main shaft, a right end bearing of the rotor main shaft is arranged at the right end of the rotor main shaft, hammer disks are arranged on the rotor main shaft at equal intervals in a heating mode, a hammer shaft penetrating through hole is formed in the outer edge of each hammer disk, a left section of hammer shaft penetrates through the through hole and is connected with a corresponding hammer shaft of the hammer disk arranged on a left half shaft of the rotor main shaft in a penetrating mode, a hammer head assembly is connected onto the left section of hammer shaft, a right section of hammer shaft penetrates through the through hole and is connected with the corresponding hammer shaft of the hammer disk arranged on a right half shaft of the rotor main shaft in a penetrating mode, and the right section of hammer shaft is connected with the hammer head assembly; a left spacer ring is arranged between two adjacent hammer disks arranged on a left half shaft of the rotor main shaft, a pair of left spacer ring fixing pin through holes is arranged on the left spacer ring, a left section hammer shaft fixing pin through hole is arranged on the left section hammer shaft, the pair of left spacer ring fixing pin through holes and the left section hammer shaft fixing pin through hole are correspondingly arranged, and a left section hammer shaft fixing pin is arranged between the pair of left spacer ring fixing pin through holes and the left section hammer shaft fixing pin through hole in a penetrating manner; a right spacer ring is arranged between two adjacent hammer disks arranged on a right half shaft of the rotor spindle, and the connection mode of the right spacer ring and the right section of the hammer shaft is completely the same as the connection mode of the left spacer ring and the left section of the hammer shaft; the hammer head components arranged on adjacent hammer shafts on the lateral surface of the excircle of the hammer disk are arranged in a staggered manner along the axial direction of the rotor spindle; the hammer head component is arranged on the outer circle side face of the hammer disc in a spiral line mode, the central axis of the spiral line is overlapped with the central axis of the rotor spindle, and a spiral clearance groove is formed between every two adjacent spiral lines.
The tup subassembly is assembled after being linked together by hammer handle and tup and is formed, is provided with the hammer axle cross-under hole at the right side end of hammer handle, is provided with at the left side end of hammer handle and connects the tup fixed pin cross-under hole, and the cross-under has the tup fixed pin in connecting the tup fixed pin cross-under hole, and the tup fixed pin is in the same place tup and the left side end fixed connection of hammer handle, and the hammer handle passes through the hammer axle cross-under hole and cross-under is epaxial at the hammer.
The outer circle of the hammer disc is provided with hammer shafts which penetrate through the through holes at equal intervals in a radian manner; a hammer shaft corresponding to a hammer disk arranged on a rotor main shaft penetrates through the through hole and is provided with a left section of hammer shaft, a middle section of hammer shaft and a right section of hammer shaft, and each section of hammer shaft is provided with a spacing ring for fixing the section of hammer shaft and a hammer shaft fixing pin; the number of the hammer shafts arranged on the excircle of the hammer disk at equal intervals in a radian mode penetrates through the through holes to be 8 or 12.
The invention effectively eliminates the phenomenon of material arching, improves the crushing uniformity of the fire coal, and well meets the requirement of the circulating fluidized bed boiler on the uniformity of the fire coal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic view of the arrangement of the hammer head assembly when the rotor of the present invention is deployed to a flat surface;
fig. 4 is a schematic structural view of the hammer disk 2 of the present invention in the front view direction;
fig. 5 is a schematic structural view of the hammer disk 2 of the present invention in a side view;
fig. 6 is a schematic structural view of the hammer head assembly 13 of the present invention in a front view direction;
fig. 7 is a schematic structural view of the hammer head assembly 13 of the present invention in a side view.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a fine crusher rotor assembly capable of uniformly crushing materials comprises a rotor spindle 1, wherein a rotor spindle left end bearing 11 is arranged at the left end of the rotor spindle 1, a rotor spindle right end bearing 12 is arranged at the right end of the rotor spindle 1, hammer disks 2 are arranged on the rotor spindle 1 at equal intervals in a heating mode, hammer shaft penetrating through holes 3 are formed in the outer edges of the hammer disks 2, a left section of hammer shaft 4 penetrates through the through holes 3 and corresponds to the hammer disks 2 arranged on a left half shaft of the rotor spindle 1, a hammer head assembly 13 is connected to the left section of hammer shaft 4, a right section of hammer shaft 5 penetrates through the through holes 3 and corresponds to the hammer disks 2 arranged on a right half shaft of the rotor spindle 1, and the hammer head assembly 13 is connected to the right section of hammer shaft 5; a left spacer ring 6 is arranged between two adjacent hammer disks 2 arranged on a left half shaft of a rotor main shaft 1, a pair of left spacer ring fixing pin through holes 8 is arranged on the left spacer ring 6, a left section hammer shaft fixing pin through hole 9 is arranged on a left section hammer shaft 4, the pair of left spacer ring fixing pin through holes 8 and the left section hammer shaft fixing pin through hole 9 are correspondingly arranged, and a left section hammer shaft fixing pin 10 is arranged between the pair of left spacer ring fixing pin through holes 8 and the left section hammer shaft fixing pin through hole 9 in a penetrating manner; a right spacer ring 7 is arranged between two adjacent hammer disks 2 arranged on a right half shaft of the rotor spindle 1, and the connection mode of the right spacer ring 7 and the right section hammer shaft 5 is completely the same as that of the left spacer ring 6 and the left section hammer shaft 4; the hammer head components arranged on the adjacent hammer shafts on the outer circle side surface of the hammer disc are arranged in a staggered manner along the axial direction of the rotor main shaft; the hammer head assembly is arranged on the outer circle side surface of the hammer disc in a spiral line arrangement mode, the central axis of each spiral line is superposed with the central axis of the rotor spindle, and a spiral clearance groove is formed between every two adjacent spiral lines; when the rotor main shaft rotates at a high speed, the fire coal falling onto the rotor main shaft can form spiral material flow along with the rotation of the rotor, and the material flow is crushed and falls, so that the accumulation is avoided, and the crushing uniformity is further influenced.
The outer circle of the hammer disk 2 is provided with hammer shafts which penetrate through the through holes 3 at equal intervals in a radian manner; the hammer shaft corresponding to the hammer disk 2 arranged on the rotor main shaft 1 penetrates through the through hole 3 and is provided with a left section of hammer shaft, a middle section of hammer shaft and a right section of hammer shaft, the left section of hammer shaft, the middle section of hammer shaft and the right section of hammer shaft are sequentially connected together to form an integral hammer shaft, and each section of hammer shaft is provided with a spacing ring for fixing the section of hammer shaft and a hammer shaft fixing pin; the hammer head assembly 13 is formed by connecting a hammer handle 14 and a hammer head 16 together and then assembling, a hammer shaft penetrating hole 15 is formed in the right side end of the hammer handle 14, a connecting hammer head fixing pin penetrating hole 17 is formed in the left side end of the hammer handle 14, a hammer head fixing pin 18 penetrates through the connecting hammer head fixing pin penetrating hole 17, the hammer head 16 and the left side end of the hammer handle 14 are fixedly connected together through the hammer head fixing pin 18, and the hammer handle 14 penetrates through the hammer shaft penetrating hole 15 to be connected to the hammer shaft.
The number of the hammer shafts arranged on the excircle of the hammer disk 2 at equal intervals in radian penetrates through the through holes 3 is 8 or 12; when the fine crusher cavity is great, the hammer disks with large diameters can be selected, the hammer shaft holes in the outer circles of the hammer disks can be designed to be 12, when the fine crusher cavity is limited, the hammer disks with small diameters can be selected, and the hammer shaft holes in the outer circles of the hammer disks can be designed to be 8.
Claims (3)
1. A fine crusher rotor assembly capable of uniformly crushing materials comprises a rotor spindle (1), wherein a rotor spindle left end bearing (11) is arranged at the left end of the rotor spindle (1), a rotor spindle right end bearing (12) is arranged at the right end of the rotor spindle (1), hammer disks (2) are arranged on the rotor spindle (1) at equal intervals in a heating mode, hammer shaft penetrating through holes (3) are formed in the outer edges of the hammer disks (2), the fine crusher rotor assembly is characterized in that a left section of a hammer shaft (4) penetrates through the through holes (3) of the corresponding hammer shaft of the hammer disk (2) arranged on a left half shaft of the rotor spindle (1), a hammer head assembly (13) is connected to the left section of the hammer shaft (4), a right section of the hammer shaft (5) penetrates through the through holes (3) of the corresponding hammer disk (2) arranged on a right half shaft of the rotor spindle (1), and the right section of the hammer shaft (5) is connected with the hammer head assembly (13); a left spacer ring (6) is arranged between two adjacent hammer disks (2) arranged on a left half shaft of a rotor main shaft (1), a pair of left spacer ring fixed pin cross-connecting holes (8) is arranged on the left spacer ring (6), a left section hammer shaft fixed pin cross-connecting hole (9) is arranged on a left section hammer shaft (4), the pair of left spacer ring fixed pin cross-connecting holes (8) and the left section hammer shaft fixed pin cross-connecting hole (9) are correspondingly arranged, and a left section hammer shaft fixed pin (10) is cross-connected between the pair of left spacer ring fixed pin cross-connecting holes (8) and the left section hammer shaft fixed pin cross-connecting hole (9); a right spacer ring (7) is arranged between two adjacent hammer disks (2) arranged on the right half shaft of the rotor spindle (1), and the connection mode of the right spacer ring (7) and the right section hammer shaft (5) is completely the same as the connection mode of the left spacer ring (6) and the left section hammer shaft (4); the hammer head components arranged on the adjacent hammer shafts on the outer circle side surface of the hammer disc are arranged in a staggered manner along the axial direction of the rotor main shaft; the hammer head component is arranged on the outer circle side face of the hammer disc in a spiral line mode, the central axis of the spiral line is overlapped with the central axis of the rotor spindle, and a spiral clearance groove is formed between every two adjacent spiral lines.
2. The rotor assembly of the fine crusher capable of uniformly crushing materials according to claim 1, wherein the hammer head assembly (13) is assembled by connecting a hammer handle (14) and a hammer head (16), a hammer shaft through hole (15) is formed in the right side end of the hammer handle (14), a connecting hammer head fixing pin through hole (17) is formed in the left side end of the hammer handle (14), a hammer head fixing pin (18) is connected in the connecting hammer head fixing pin through hole (17) in a penetrating manner, the hammer head fixing pin (18) fixedly connects the hammer head (16) and the left side end of the hammer handle (14) together, and the hammer handle (14) is connected to the hammer shaft through hole (15) in a penetrating manner.
3. The rotor assembly of the fine crusher capable of crushing materials uniformly according to claim 1 or 2, characterized in that a hammer shaft is arranged on the outer circle of the hammer disk (2) at equal intervals and radian to pass through the through hole (3); a hammer shaft corresponding to a hammer disk (2) arranged on a rotor main shaft (1) penetrates through the through hole (3), a left section of hammer shaft, a middle section of hammer shaft and a right section of hammer shaft are arranged, and each section of hammer shaft is provided with a spacing ring for fixing the section of hammer shaft and a hammer shaft fixing pin; the number of the hammer shafts arranged on the excircle of the hammer disk (2) at equal intervals in radian penetrates through the through holes (3) is 8 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121624798.9U CN217796445U (en) | 2021-07-16 | 2021-07-16 | Fine crusher rotor assembly capable of uniformly crushing materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121624798.9U CN217796445U (en) | 2021-07-16 | 2021-07-16 | Fine crusher rotor assembly capable of uniformly crushing materials |
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| Publication Number | Publication Date |
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| CN217796445U true CN217796445U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121624798.9U Active CN217796445U (en) | 2021-07-16 | 2021-07-16 | Fine crusher rotor assembly capable of uniformly crushing materials |
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| CN (1) | CN217796445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477338A (en) * | 2021-07-16 | 2021-10-08 | 太原锅炉集团有限公司 | Fine crusher rotor assembly capable of uniformly crushing materials |
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2021
- 2021-07-16 CN CN202121624798.9U patent/CN217796445U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477338A (en) * | 2021-07-16 | 2021-10-08 | 太原锅炉集团有限公司 | Fine crusher rotor assembly capable of uniformly crushing materials |
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